Today was a fun-filled evening for me... I realised today that my rear right door lock seemed to not engage after using the remote.
VCSD Scan returned this error from the following modules:
01334 - Door Control Module; Rear Right (J389)
004 - No Signal/Communication
After many searches on your favourite Audi forum as well as Google it seems that among failed locking mechanism modules and water damage, etc, a very common issue is the wiring harness that connects the control module in question to the car's CAN bus.
In most cases checking the condition of the wires inside the rubber boot between car body and door resulted in one or two pinched wires which were broken and required reconnecting in order to resolve the issue. This works fine for 3-door A3s.
I have a Sportback and after checking the rear door boot, all wires seemed in perfect condition. At this point I was a little worried about having to shell out for a new door control module or harness and begun searching for pricing for the replacement. It's at this point I stumbled on this post, where the OP found that the wiring for the rear doors actually goes through the front for some reason and checking front door wiring harness is in order!
After performing the same check on the driver's front door, I found two completely broken wires and some that had insulation damage. I shudder to think what kind of ECU problems I would be having if those wires were shorting or something!
I now have a choice of repairing the damaged wires or replacing the loom. At £100 for a new door loom, I'm leaning towards creative wire butchery
Will check the other side looms too, and do some preventative work if needed.
Anyway, posting this here for the future generations of poor A3 Sportback owners, who are likely to keep having these issues for some time to come.
VCSD Scan returned this error from the following modules:
- 08: Auto HVAC
- 09: Cent. Elect.
- 19 CAN Gateway
01334 - Door Control Module; Rear Right (J389)
004 - No Signal/Communication
After many searches on your favourite Audi forum as well as Google it seems that among failed locking mechanism modules and water damage, etc, a very common issue is the wiring harness that connects the control module in question to the car's CAN bus.
In most cases checking the condition of the wires inside the rubber boot between car body and door resulted in one or two pinched wires which were broken and required reconnecting in order to resolve the issue. This works fine for 3-door A3s.
I have a Sportback and after checking the rear door boot, all wires seemed in perfect condition. At this point I was a little worried about having to shell out for a new door control module or harness and begun searching for pricing for the replacement. It's at this point I stumbled on this post, where the OP found that the wiring for the rear doors actually goes through the front for some reason and checking front door wiring harness is in order!
After performing the same check on the driver's front door, I found two completely broken wires and some that had insulation damage. I shudder to think what kind of ECU problems I would be having if those wires were shorting or something!
I now have a choice of repairing the damaged wires or replacing the loom. At £100 for a new door loom, I'm leaning towards creative wire butchery
Will check the other side looms too, and do some preventative work if needed.Anyway, posting this here for the future generations of poor A3 Sportback owners, who are likely to keep having these issues for some time to come.
